Police responded after a witness said a car had rammed members of the public and that one man had been stabbed. “He has a bomb, go away!” an armed police officer shouted to onlookers as he tried to wave away members of the public. After the attack, police were seen ushering a large group of mostly Jewish elderly men - some in tears, many looking shocked - away from the synagogue. “The fact that this has taken place on Yom Kippur, the holiest day in the Jewish calendar, makes it all the more horrific,” Starmer said. More recently, a 2017 suicide bomb attack at the end of an Ariana Grande pop concert in Manchester killed 22 people and injured hundreds.